Even in the dream world, humans still had a subconscious. If Lu Chen was about to do something bad to the sun god hull in the dream, the sun god's subconscious would warn him, just like how Lu Chen was confused by the starry octopus.
However, Lu Chen was only searching for information and he didn't plan to kill the sun god in the dream. Therefore, his subconscious didn't activate.
It was like walking on the street and someone pointing a gun at you. You would be alert and afraid.
However, if someone asked for your name, your vigilance would be greatly reduced.
Besides, it was a logical question. Lu Chen didn't want the sun god to reveal his own information, but to tell the God's name and information to the believers when they were offering sacrifices. There was nothing wrong with it.